Improvement in working in sheet metal



iiNrrnn Srarns Bernat innen.,

SAML. It. SHEIARD AND ORSON IV. S'IOV, OF BLANTSVILLE, CONNECTICUT.

IMPROVEMENT IN WORKING IN SHEET IVIETAL.

Specilieaton forming part of Letters Patent No. RAJSS, dated April .'22,1856.

To @ZZ who/lt it may concer/t.-

Beit known that we, SAMUEL R. Snnrn'nn and ORSON V. STOW, ofPlantsville, in lthe county of Hartford and State of Connecticut, haveinvented certain new and useful Improvements in Machines used in theBIanufaeture of rIinware, for Yiring, Beading, rife.; and we do herebydeclare that the following is a full, clear, and exact description ofthe'same, ret`- erence being had to the annexed drawings, making a partof this specification, in which- Figure l is an end View ot' awiring-machine with our improvements applied to it. Fig. 2 is a sideview of the working parts ot" the same, the frame being bisectedvertically, and also the adjustable rotating guide.

Similar letters of reference indicate corresponding parts in bothfigures.

Our invention consists in the employment or use of an adjustablerotating guide, which is placed on one of the rollers of the machine, aswill be presently shown and described, whereby the box, kettle, or otherarticle being operated upon will be fed through the ma chine without theaid of the operator.

To enable those skilled in the art to fully understand and construct ourinvention, we will proceed to describe it.

A represents a framing, which may be eony structed of cast-iron, and isot' the usual construction, the upper part, d, ot' the frame beingjointed to the lower part, I), at c, and the upper part, u, having ashaft, B, itted within it, and the lower part, b, having a shaft, C, ttted within it.

D represents a spring attached to the upper surface ot' the part n. ot'the framing. The outer end of this spring bears upon a projection, j',on the upper part ot' a guide-frame, E, in which the upper part, a., ofthe framing is iitted.

F represents a screw by which the upper part, a, of the framing isforced down toward the lower part, Z).

To the end of each of the shafts B C there is att-ached a metalicroller, G.

rlhe above parts are all ot" the usual construction, and therefore donot require a mi nute description.

rIhe rollers represented in the drawings have lips g on their outeredges, as shown clearly in Fig. 9 'These rollers, thus formed,

are used for wiring the rims or edges of sheetmetal vessels-such aspails, coal-hods, &e. The lips g of the rollers, as the rollers rotate,bend the sheet metal or close it around the wire, the vessel and wirebeing passed between the rollers, as shown in red in both figures, hrepresenting the wire and the sheet metal.

H represents a gnidewhich is fitted over the lower roller, G, and aportion o'l` the shaft C. The guideII may be described as being ofcylindrical form, so as to correspond with the shaft C and roller G, andvtit snugly on them, as shown clearly in Fig. 2. The lower shaft, C, hasa screw-thread,j, cut upon it, on which a nut, I, is fitted, and aspiral spring, J, is titted around the shaft C within the guide. Byturning the nut I the ou ter edge of the guide II may be moved nearer toor farther from the lip f/ on the lower roller,as will be readily seenby referring to Fig. 2, the nut I, when turned in one direction, forcingthe guide I-I outward or toward the lip g on said roller, and when thenut I is turned .in the opposite direction the guide is thrown backvfrom said lip by the spring J. rIhe edge ot' the article being wired ofcourse rests or bears against the edge of the guide H, and the guidemust be adjusted aecording to the thickness of the wire used, as thewire must tit between the lip r/ on the roller and the edge of theguide;

By the above inqnovement the vessel or othelI article being wired willbe fed through or passed around by the pressure ofthe rollers and guidell, as the guiderotates with the lower roller. No force or aid will berequired from the operator. In the machines used at present the guide isstationary or fixed, and is attached tothe framing ot' the machine, andso much friction is created thereby that the operator is obliged toforce the article around between the rollers as they rotate.

K represents a forming-roller, which is fitted on an axis, L, attachedat a rightangle with one end of an arm, M, which is fitted on the end ofthe upper shaft, B. The opposite end ot' the arm M has a slot, It', madethrough it, through which slot a set-`screw, N, passes into the framingA. By means ofthe set-screw the roller Ii may be secured in a higher orlower position, so as to curve the sheet metal as it is passed betweenthe rollers. As the roller is attached to the upper shaft, B, it will beseen that the roller rises with it und the metal The adjustablerotating` guide Il, attached 1s relieved at onee of its pressure as soonus to either el" the rollers G, constructed and arthe upper. roller, G,is raised. ranged substantiallyas described, for the pur- Theforming-roller K is now used on nm-V pose specified. chimes; but itrequires :t separate adjustment in order to be raised from the metal ornrtiele SAMUEL R' SHEPARD' ,r .7 between the rollers G G. GRECA w STOVHaving thus described our invention, what Vitiiesses: we claim as new,and desire to secure by Let- SiLAs A. BRADLEY,

ters Patent, s- J. S. PHINNEY.

